1′-Methyl-4′-phenyl­indan-2-spiro-2′-pyrrolidine-3′-spiro-1′′-cyclo­octane-1,3,2′′-trione

In the title compound, C26H27NO3, the pyrrolidine ring adopts an envelope conformation. The indanedione group is planar, the dihedral angle between the fused five- and six-membered rings of this group being 1.1 (2)°. There are intra­molecular C—H⋯O and C—H⋯π inter­actions.